"Never put credentials in your code files. Always use environment variables. Set environment variables in terminal or use a .env file with python-dotenv. Your .env file is in .gitignore so it never gets pushed, ensuring credentials remain secure and separate from version control."
"git-secrets automatically scans your code BEFORE every commit. If it finds credentials - it blocks the commit completely. Once installed - you literally cannot accidentally commit AWS credentials. The commit is blocked before it happens. This is the cheapest insurance you can get."
"Create a .gitignore file in every project: Any file listed here will NEVER be committed to git. Ever. This prevents sensitive files from being accidentally pushed to repositories where they could be exposed."
Credential exposure prevention requires multiple layers of protection. Use .gitignore to exclude sensitive files from version control. Store credentials in environment variables rather than hardcoding them in source code. Implement git-secrets as a pre-commit hook to automatically scan and block commits containing credentials before they reach the repository. For AWS specifically, use IAM roles instead of access keys when running code on EC2 or Lambda, eliminating the need to manage credentials altogether. These preventive measures are simpler and less stressful than remediation after exposure occurs.
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